What happens to LOST String objects

Question

Line 1: String x = "Java";
Line 2: x.concat(" Rules!");
Line 3: System.out.println("x = " + x);

Output is "x= Java"

Line 1:creates a new String object, gives the value "Java", and refer x to it.

Line 2: VM creates a 2nd String object with value "Java Rules!" but nothing refers to it. THE 2nd STRING OBJECT IS INSTANTLY LOST; YOU CANNOT GET TO IT.

As these String Objects are created in Heap, will the 2nd object be Garbage Collected.

Answer 1

Enosh, in java Strings are immutable, so you should assign

x = x.concat(" Rules");

for the second line and then it will work.

The second object will be GC'd eventually because there is no longer an entity refering to it.

Answer 2

Absolutely. That's the whole point of garbage collection.